Hach BODTrak II, User Manual

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1. Heat or cool the sample to approximately 20 ºC.
2. Half fill a sample bottle with sample.
3. Shake for 2 minutes or aerate with filtered compressed air for
2 hours.
Section 11 Maintenance
D A N G E R
Multiple hazards. Only qualified personnel must conduct the
tasks described in this section of the document.
C A U T I O N
Chemical exposure hazard. Obey laboratory safety
procedures and wear all of the personal protective
equipment appropriate to the chemicals that are handled.
Refer to the current safety data sheets (MSDS/SDS) for
safety protocols.
11.1 Cleaning
Clean the instrument
Clean spills on the instrument with a soft cloth that has been dampened
with deionized or distilled water.
Clean the sample bottles
Clean the sample bottles and caps with a brush, water and a mild
detergent. Flush the sample bottles with fresh water followed by a
distilled water rinse.
Clean the stir bars and seal cups
Clean the stir bars with hot water and soap. Use a brush to remove
deposits. Rinse with fresh water and then rinse with distilled water.
Carefully empty and rinse the seal cups with water. Invert to dry.
11.2 Storage
The bottle fences prevent tipping of the bottles and provide tubing
management in storage. For storage, put the tubing in the opening in the
bottle fence. Move the tubing counter-clockwise and secure the bottle
cap inside the fence.
Section 12 Troubleshooting
12.1 Incorrect BOD curves
Figure 4 shows incorrect BOD curves for a 10 day test period. For typical
curves, refer to Typical curves on page 15.
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